added open hack session
added open hack session

chihacknight/chihacknight.org,chihacknight/chihacknight.org,CodeandoGuadalajara/codeandoguadalajara.github.io,ProgressiveHackNight/proghacknight.org,CodeandoGuadalajara/codeandoguadalajara.github.io,CodeandoGuadalajara/codeandoguadalajara.github.io,chihacknight/chihacknight.org,ProgressiveHackNight/proghacknight.org,chihacknight/chihacknight.org,ProgressiveHackNight/proghacknight.org,ProgressiveHackNight/proghacknight.org,CodeandoGuadalajara/codeandoguadalajara.github.io